Open Blockchain Network
An open blockchain network permits broad participation in reading, submitting, validating, or building applications under publicly available protocol rules. Openness has several…
Glossary terms starting with O
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Open Network
An open network allows participants to connect, communicate, or use services through published interfaces without case-by-case permission from one operator. The term…
Open-Amount Crypto Payment Link
An Open-Amount Crypto Payment Link is a shareable payment page that lets the payer enter the amount instead of using a fixed…
Open-Loop Wallet
An open-loop wallet stores or accesses value that can be used across multiple independent merchants or recipients within the supported payment network.…
OpenAPI Document
An OpenAPI Document is a machine-readable description of an HTTP API written according to the OpenAPI Specification. It can define servers, paths,…
OpenAPI Specification
OpenAPI Specification is a standard, machine-readable description format for HTTP APIs, including paths, operations, parameters, schemas, responses, and security schemes. It is…
OpenCart
OpenCart is an open-source e-commerce platform used to create and manage online stores. In e-commerce platform operations, it commonly covers catalog management,…
OpenCart Crypto Payment Plugin
An OpenCart crypto payment plugin connects store orders with cryptocurrency payment requests, checkout instructions, callbacks, confirmations, and order-status updates. OpenCart Crypto Payment…
Operational Custody Risk
Operational custody risk is the possibility that procedures, people, systems, or records fail while safeguarding, signing, moving, or recovering assets. A score…
Operational Risk
Operational risk is the possibility of loss from failed processes, people, systems, external events, or inadequate execution of business activities. Decision-makers use…
Operational Security
Operational Security is a security mechanism or control discipline that protects sensitive activities and information by identifying what adversaries could observe, infer,…
Operational Wallet
An operational wallet is a wallet assigned to routine business activity such as collections, payouts, refunds, fees, settlement, or contract interactions. The…
Optimism Bridge
Optimism Bridge is the canonical contract system for depositing assets and messages between Ethereum and OP Mainnet and withdrawing them back. Withdrawals…
Optimism Network
Optimism Network can refer to OP Mainnet or the broader OP Stack ecosystem of Ethereum-aligned rollup chains and shared infrastructure. Each OP…
Optimistic Bridge
An optimistic bridge accepts cross-chain claims provisionally and relies on a challenge period in which observers can prove fraudulent messages or state.…
Optimistic Confirmation
An optimistic confirmation is a fast, provisional indication that a transaction is expected to remain accepted even though stronger settlement guarantees have…
Optimistic Rollup
An optimistic rollup executes transactions off Ethereum, publishes data and state commitments, and uses fraud proofs to challenge invalid results. Users benefit…
Oracle
An oracle supplies blockchain applications with external data, computation results, or event attestations that the chain cannot determine from its own state.…
Oracle Aggregation
Oracle aggregation combines multiple data observations or signed reports into one value using rules designed to reduce noise, errors, and manipulation. The…
Oracle Attack
Oracle Attack is an attack or weakness pattern that manipulates, delays, corrupts, or selectively exploits external data used by a protocol to…
Oracle Commerce
Oracle commerce describes using authenticated external data to automate blockchain-based pricing, fulfillment, settlement, insurance, or contractual business decisions. Automation introduces a dependency…
Oracle Contract
An oracle contract stores, verifies, or exposes externally derived reports on-chain so other smart contracts can consume standardized data. Some designs push…
Oracle Delay
Oracle delay is the time between an external event or observation and the corresponding data becoming available and usable on-chain. Some delay…
Oracle Deviation
Oracle deviation is the absolute or percentage difference between a new observation and a reference, previous report, aggregate, or expected value. Meaning…